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authorChristoph Hellwig <hch@lst.de>2020-11-26 10:41:07 +0100
committerJens Axboe <axboe@kernel.dk>2020-12-01 14:53:40 -0700
commit977115c0f664e016a6b2774d4f97116ade23d732 (patch)
tree1fec5aa76caa573bdc71d4731aa5b18b959a3aa3 /drivers/block/zram/zram_drv.c
parent0d02129e76edf91cf04fabf1efbc3a9a1f1d729a (diff)
block: stop using bdget_disk for partition 0
We can just dereference the point in struct gendisk instead. Also remove the now unused export. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/zram/zram_drv.c')
-rw-r--r--drivers/block/zram/zram_drv.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index dc8957d173d3..b0701bae6e98 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1760,15 +1760,12 @@ static ssize_t reset_store(struct device *dev,
return -EINVAL;
zram = dev_to_zram(dev);
- bdev = bdget_disk(zram->disk, 0);
- if (!bdev)
- return -ENOMEM;
+ bdev = zram->disk->part0;
mutex_lock(&bdev->bd_mutex);
/* Do not reset an active device or claimed device */
if (bdev->bd_openers || zram->claim) {
mutex_unlock(&bdev->bd_mutex);
- bdput(bdev);
return -EBUSY;
}
@@ -1779,7 +1776,6 @@ static ssize_t reset_store(struct device *dev,
/* Make sure all the pending I/O are finished */
fsync_bdev(bdev);
zram_reset_device(zram);
- bdput(bdev);
mutex_lock(&bdev->bd_mutex);
zram->claim = false;
@@ -1965,16 +1961,11 @@ out_free_dev:
static int zram_remove(struct zram *zram)
{
- struct block_device *bdev;
-
- bdev = bdget_disk(zram->disk, 0);
- if (!bdev)
- return -ENOMEM;
+ struct block_device *bdev = zram->disk->part0;
mutex_lock(&bdev->bd_mutex);
if (bdev->bd_openers || zram->claim) {
mutex_unlock(&bdev->bd_mutex);
- bdput(bdev);
return -EBUSY;
}
@@ -1986,7 +1977,6 @@ static int zram_remove(struct zram *zram)
/* Make sure all the pending I/O are finished */
fsync_bdev(bdev);
zram_reset_device(zram);
- bdput(bdev);
pr_info("Removed device: %s\n", zram->disk->disk_name);